Quick answers
- Is CVE-1999-0204 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-1999-0204 being exploited in the wild.
- How severe is CVE-1999-0204?
- Critical severity, with a CVSS score of 10, published 1 January 1997.
- Which products and versions are affected?
- Sendmail Sendmail 8.6.9.
- Is there a fix for CVE-1999-0204?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-1999-0204 attacked?
- It is attacked over the network, in an operating system.
- Am I affected by CVE-1999-0204?
- Check whether you run Eric Allman Sendmail. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A remote code execution vulnerability exists in Sendmail 8.6.9 due to improper handling of responses from the Identification Protocol (ident). By providing a specially crafted ident response during a connection, a remote, unauthenticated attacker can trigger a buffer overflow or similar memory corruption to execute arbitrary commands with root privileges. This attack is performed over the network without requiring user interaction. Organizations should upgrade to a patched version of Sendmail or disable ident lookups if they are not required for operations.
Affected products
- Sendmail Sendmail 8.6.9
Timeline
- 1997-01-01: disclosed: Initial publication date recorded in NVD.